<template>
  <view>
    <view class="goods-list">
      <view v-for="goods,i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj:{
          query:'',
          cid:'',
          pagenum:1,
          pagesize:10
        },
        goodsList:[],
        total:0,
        isLoading:false
      }
    },
    onLoad(option) {
      this.queryObj.query=option.query || ""
      this.queryObj.cid = option.cid || ""
      console.log(option)
      this.getGoodsList()
    },
    onReachBottom() {
      //判断是否还有下一页数据
      if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg("数据加载完毕")
      //判断是否正在请求其他数据，如果是，则不发起额外的请求
      if(this.isLoading) return
      
     this.queryObj.pagenum+= 1
     this.getGoodsList()
    },
    onPullDownRefresh(){
      //重置关键数据
      this.queryObj.pagenum=1
      this.total=0
      this.isLoading=false
      this.goodsList=[]
      //重新调用获取数据函数，并传入一个关闭下拉刷新的回调函数
      this.getGoodsList(()=>uni.stopPullDownRefresh())
    },
    methods: {
      async getGoodsList(cb){
        //打开节流阀
        this.isLoading = true
        const {data:res} = await uni.$http.get("/api/public/v1/goods/search",this.queryObj)
        //关闭节流阀
        this.isLoading=false
        //当回调函数存在的时候，执行回调函数
        cb && cb()
        
        console.log(res)
        if(res.meta.status !== 200) return uni.$showMsg()
        this.goodsList = [...this.goodsList,...res.message.goods]
        this.total = res.message.total
      },
      gotoDetail(goods){
        uni.navigateTo({
          url:"/subpkg/goods_details/goods_details?goods_id="+goods.goods_id
        })
      }
    }
  }
</script>

<style lang="scss">

</style>
